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Science News Archive February 2014 - Page 8


Page 8 of 30

Opioid abuse initiates specific protein interactions in neurons in brain's reward system

New research reveals that opioid use changes the activity of a specific protein needed for normal brain function, affecting both pain relief and tolerance. The study found that blocking this protein can reduce addiction-related behaviors, but increasing its activity lowers pain relief response and leads to faster morphine tolerance.

GM spuds beat blight

Scientists boosted potato resistance to late blight without deploying fungicides in a three-year GM research trial. The study found non-transgenic plants were 100% infected while GM plants remained fully resistant., The GM technology triggers the plant's natural defense mechanisms, enabling it to recognize and resist the pathogen.

New technology detect cellular memory

Researchers at BRIC, University of Copenhagen, have developed a new technology that can isolate histones and follow dynamic duplication processes in cells. The technology has identified 100 new molecular components involved in chromatin duplication and maintenance of cell memory.

SourceUniversity of Copenhagen·JournalNature Cell Biology·DateFeb 23, 2014

New insights into the origin of birds

Scientists discovered that key characteristics of flight, such as body size and forelimb length, evolved simultaneously in a group of dinosaurs. These findings suggest that birds arose through multiple evolutionary steps, with powered flight emerging later.

SourceUniversity of Bristol·JournalEvolution·DateFeb 23, 2014

Scientists unlock a 'microbial Pompeii'

Researchers discovered a 'microbial Pompeii' in ancient dental calculus, revealing opportunistic pathogens and periodontal disease-causing bacteria. The study also recovered dietary DNA, providing insights into ancient diets and the origins of antibiotic resistance.

SourceUniversity of York·JournalNature Genetics·DateFeb 23, 2014

Researchers make the invisible visible

Researchers have developed a groundbreaking MRI technique that can visualize metabolic changes in the body's cells. This breakthrough could lead to earlier diagnoses of diseases such as diabetes and cancer. The hyperpolarization method provides a fingerprint of cellular activity, allowing for real-time monitoring of disease progression.

SourceAarhus University·JournalKidney International·DateFeb 23, 2014

Fruit-loving lemurs score higher on spatial memory tests

A study by researchers at Duke University found that fruit-eating lemur species excel in spatial memory tests, demonstrating a strong link between diet and cognitive abilities. The findings suggest that lemurs with diets rich in fruits, which are seasonally available and often hard to access, develop superior spatial memory skills.

SourceDuke University·JournalAnimal Cognition·DateFeb 21, 2014

Promising cervical cancer study

A multi-site research project led by Dr. Bradley J. Monk found that women with advanced cervical cancer live an average of 17 months longer when combined with bevacizumab and chemotherapy compared to chemotherapy alone. The study reveals a significant improvement in treatment outcomes for patients with metastatic cervical cancer.

SourceSt. Joseph's Hospital and Medical Center·JournalNew England Journal of Medicine·DateFeb 21, 2014

Optimizing custody is child's play for physicists

Researchers used physical models to tackle the challenge of finding a suitable weekend for both parents in a recomposed family to see all their children at the same time. They found that minimizing energy in a material model is equivalent to maximizing parent-child time, and developed an algorithm to achieve this.

SourceSpringer·JournalThe European Physical Journal B·DateFeb 21, 2014

Degradation of viral DNA in the cell nucleus is opening up new treatment

Scientists have discovered a way to selectively degrade viral DNA in the cell nucleus of infected liver cells, opening up new treatment options for hepatitis B. This breakthrough may allow for the development of a treatment that can heal hepatitis B without damaging the host cell.

Early warning system for epidemics

A new software architecture developed by Fraunhofer IOSB enables the visualization of complex relationships between environmental factors and health data on risk maps, leading to a better understanding of cholera epidemic processes. This allows for faster and more effective response measures.

Selenium and vitamin E supplementation over recommended dietary intake may raise PC risk

A new study published in JNCI Journal of the National Cancer Institute found that high-dose selenium supplementation increased the risk of high-grade prostate cancer among older men with high baseline toenail selenium concentrations. Vitamin E supplementation also raised PC risk, especially among men with low baseline selenium levels.

SourceOxford University Press UK·JournalJNCI Journal of the National Cancer Institute·DateFeb 21, 2014

Will plug-in cars crash the electric grid?

A team of University of Vermont scientists has developed a novel solution to manage the growing fleet of plug-in electric cars, allowing them to charge in smaller chunks and distribute demand over time. The approach uses smart meters and computer algorithms to smooth out supply and demand, protecting grid overload.

SourceUniversity of Vermont·JournalIEEE Transactions on Smart Grid·DateFeb 21, 2014

Active thyroid may raise risk of depression in older individuals

A population-based cohort study found that older adults with highly active thyroid glands are at a substantially increased risk of developing depression. The study analyzed data from 1,503 participants and found that those with higher TSH levels were more likely to experience depression symptoms over an eight-year period.

SourceThe Endocrine Society·JournalThe Journal of Clinical Endocrinology & Metabolism·DateFeb 20, 2014

Hypnosis therapy shown to decrease fatigue levels in breast cancer patients

A randomized controlled trial found that cognitive behavioral therapy plus hypnosis significantly reduced fatigue in breast cancer patients during and after radiotherapy. The treatment group had less fatigue than 79% of control group patients at the end of radiotherapy, with benefits persisting for up to six months.

SourceThe Mount Sinai Hospital / Mount Sinai School of Medicine·JournalJournal of Clinical Oncology·DateFeb 20, 2014